Not that we need psychologists to show that the human heart is desperately sick, but apparently there is some scientific recognition now that babies are deceitful. What's amazing is not that infants lie as early as six months, but that "until now, psychologists had thought the developing brains were not capable of the difficult art of lying until four years old."
"Difficult art of lying"? I've never found it that hard, myself. And my two-year-old takes after me in that regard. Lying comes quite naturally; always telling the truth is what's difficult.
Dr. Reddy, the psychologist leading the study of infant lying, "thinks children use early fibs to discover what kinds of lie work in certain situations, and also learn the negative consequences of lying too much."
Now we just need to be the kind of parents who recognize this and and don't teach our children "the negative consequences of lying too much," but the negative consequence of lying at all.